Kilo is a very rare variant of Kiley that peaked in 2023 and remains in steady use.
Kilo is a boy name. In 2025 it ranked #9,349 for boy births in the United States (and #19,299 across all names), given to 8 babies. Kilo first appears in 1990 and peaked in 2023 (15 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 8 | 8 | #9,349 |
| 2024 | 6 | 6 | #11,732 |
| 2023 | 15 | 15 | #6,087 |
| 2022 | 7 | 7 | #10,379 |
| 2021 | 11 | 11 | #7,386 |
| 2019 | 8 | 8 | #9,363 |
| 2018 | 6 | 6 | #11,538 |
| 2014 | 7 | 7 | #10,242 |
| 2012 | 5 | 5 | #13,333 |
| 2010 | 5 | 5 | #13,394 |
| 2004 | 6 | 6 | #10,737 |
| 1994 | 7 | — | #7,402 |
| 1993 | 7 | — | #7,240 |
| 1992 | 5 | — | #9,194 |
| 1991 | 7 | — | #6,940 |
| 1990 | 6 | — | #7,676 |